TY  - BOOK
AU  - Litecky, Charles R.
TI  - Structured Cobol : A Step By Step Approach / Charles R. Litecky, Gordon B. Davis
SN  - 0-07-015788-X
AV  - QA76.73.C25 L58 
U1  - 001.642.4 L218s 
CY  - United States of America : McGraw-Hill
KW  - 1.PROGRAMACIÓN ESTRUCTURAL
ER  -